Harvard College Sports Analysis Collective digs deeper into the Facebook data to discover America's most popular football teams. No surprise that the Steeles and cowboys are in their own league when it comes to nationwide popularity
There's huge disparity across the NFL. For example, the Cowboys have more than 12 times as many fans as the St. Louis Rams. But it may be unfair to look at these extreme differences as teams like the Cowboys and Steelers are almost outliers. The Steelers have over one million more fans than the Patriots, despite the fact they are only one spot ahead in the "like'" rankings.
Below is a graph and a chart showing the percentage of football fans within 50 miles of the home team's stadium who are fans of that team.